All items tagged with RGB LED and ESP2 DevKitC (6)

My Journey into the Cloud (23): Sensor values sent to Cloud using an ESP32 Pico kit

7-03-2018 | In the last installment, we built a small device using the ESP32 DevKitC, an RGB LED and a light-dependant resistor (LDR). This device perio...

My Journey into the Cloud (22): ESP32 sensor node with web server

by Jens Nickel

31-01-2018 | In previous parts of this series we saw how to use a web page on a local network to configure an IoT device. In this part, we use a web pag...

My Journey into the Cloud (20): The ESP32 creates its own Wi-Fi network

by Jens Nickel

15-11-2017 | In the last episode of this series we produced a small web server using the ESP32 DevKitC. On request from a web browser running on a PC or...

My Journey into the Cloud (19): A simple web server using the ESP32

by Jens Nickel

12-10-2017 | In the recent installments, we used the MQTT protocol to exchange messages containing measurement values and commands between different clie...

My Journey into the Cloud (18): AllThingsTalk allows visualization of measurements in the Cloud

by Jens Nickel

7-09-2017 | In this series we have developed MQTT clients able to send messages back and forth over the internet. With the summer break behind us we tak...

My Journey into the Cloud (17): using an ESP32 for the actuator

by Jens Nickel

5-07-2017 | The Pretzel board is a really useful tool especially when you are starting out with networks. Now however it was time to try out a different...